void HarfBuzzShaper::setFontFeatures()
{
const FontDescription& description = m_font->fontDescription();
if (description.orientation() == Vertical) {
static hb_feature_t vert = { HarfBuzzFace::vertTag, 1, 0, static_cast<unsigned>(-1) };
static hb_feature_t vrt2 = { HarfBuzzFace::vrt2Tag, 1, 0, static_cast<unsigned>(-1) };
m_features.append(vert);
m_features.append(vrt2);
}
FontFeatureSettings* settings = description.featureSettings();
if (!settings)
return;
unsigned numFeatures = settings->size();
for (unsigned i = 0; i < numFeatures; ++i) {
hb_feature_t feature;
const UChar* tag = settings->at(i).tag().characters();
feature.tag = HB_TAG(tag[0], tag[1], tag[2], tag[3]);
feature.value = settings->at(i).value();
feature.start = 0;
feature.end = static_cast<unsigned>(-1);
m_features.append(feature);
}
}
void HarfBuzzShaper::setFontFeatures()
{
FontFeatureSettings* settings = m_font->fontDescription().featureSettings();
if (!settings)
return;
unsigned numFeatures = settings->size();
m_features.resize(numFeatures);
for (unsigned i = 0; i < numFeatures; ++i) {
const UChar* tag = settings->at(i).tag().characters();
m_features[i].tag = HB_TAG(tag[0], tag[1], tag[2], tag[3]);
m_features[i].value = settings->at(i).value();
m_features[i].start = 0;
m_features[i].end = static_cast<unsigned>(-1);
}
}
void HarfBuzzShaper::setFontFeatures()
{
const FontDescription& description = m_font->fontDescription();
if (description.orientation() == Vertical) {
static hb_feature_t vert = { HarfBuzzFace::vertTag, 1, 0, static_cast<unsigned>(-1) };
static hb_feature_t vrt2 = { HarfBuzzFace::vrt2Tag, 1, 0, static_cast<unsigned>(-1) };
m_features.append(vert);
m_features.append(vrt2);
}
hb_feature_t kerning = { HarfBuzzFace::kernTag, 0, 0, static_cast<unsigned>(-1) };
switch (description.kerning()) {
case FontDescription::NormalKerning:
kerning.value = 1;
m_features.append(kerning);
break;
case FontDescription::NoneKerning:
kerning.value = 0;
m_features.append(kerning);
break;
case FontDescription::AutoKerning:
break;
default:
ASSERT_NOT_REACHED();
}
FontFeatureSettings* settings = description.featureSettings();
if (!settings)
return;
unsigned numFeatures = settings->size();
for (unsigned i = 0; i < numFeatures; ++i) {
hb_feature_t feature;
auto& tag = settings->at(i).tag();
feature.tag = HB_TAG(tag[0], tag[1], tag[2], tag[3]);
feature.value = settings->at(i).value();
feature.start = 0;
feature.end = static_cast<unsigned>(-1);
m_features.append(feature);
}
}
void HarfBuzzShaper::setFontFeatures()
{
const FontDescription& description = m_font->getFontDescription();
static hb_feature_t noKern = createFeature('k', 'e', 'r', 'n');
static hb_feature_t noVkrn = createFeature('v', 'k', 'r', 'n');
switch (description.getKerning()) {
case FontDescription::NormalKerning:
// kern/vkrn are enabled by default
break;
case FontDescription::NoneKerning:
m_features.append(description.isVerticalAnyUpright() ? noVkrn : noKern);
break;
case FontDescription::AutoKerning:
break;
}
static hb_feature_t noClig = createFeature('c', 'l', 'i', 'g');
static hb_feature_t noLiga = createFeature('l', 'i', 'g', 'a');
switch (description.commonLigaturesState()) {
case FontDescription::DisabledLigaturesState:
m_features.append(noLiga);
m_features.append(noClig);
break;
case FontDescription::EnabledLigaturesState:
// liga and clig are on by default
break;
case FontDescription::NormalLigaturesState:
break;
}
static hb_feature_t dlig = createFeature('d', 'l', 'i', 'g', 1);
switch (description.discretionaryLigaturesState()) {
case FontDescription::DisabledLigaturesState:
// dlig is off by default
break;
case FontDescription::EnabledLigaturesState:
m_features.append(dlig);
break;
case FontDescription::NormalLigaturesState:
break;
}
static hb_feature_t hlig = createFeature('h', 'l', 'i', 'g', 1);
switch (description.historicalLigaturesState()) {
case FontDescription::DisabledLigaturesState:
// hlig is off by default
break;
case FontDescription::EnabledLigaturesState:
m_features.append(hlig);
break;
case FontDescription::NormalLigaturesState:
break;
}
static hb_feature_t noCalt = createFeature('c', 'a', 'l', 't');
switch (description.contextualLigaturesState()) {
case FontDescription::DisabledLigaturesState:
m_features.append(noCalt);
break;
case FontDescription::EnabledLigaturesState:
// calt is on by default
break;
case FontDescription::NormalLigaturesState:
break;
}
static hb_feature_t hwid = createFeature('h', 'w', 'i', 'd', 1);
static hb_feature_t twid = createFeature('t', 'w', 'i', 'd', 1);
static hb_feature_t qwid = createFeature('q', 'w', 'i', 'd', 1);
switch (description.widthVariant()) {
case HalfWidth:
m_features.append(hwid);
break;
case ThirdWidth:
m_features.append(twid);
break;
case QuarterWidth:
m_features.append(qwid);
break;
case RegularWidth:
break;
}
// font-variant-numeric:
static hb_feature_t lnum = createFeature('l', 'n', 'u', 'm', 1);
if (description.variantNumeric().numericFigureValue() == FontVariantNumeric::LiningNums)
m_features.append(lnum);
static hb_feature_t onum = createFeature('o', 'n', 'u', 'm', 1);
if (description.variantNumeric().numericFigureValue() == FontVariantNumeric::OldstyleNums)
m_features.append(onum);
static hb_feature_t pnum = createFeature('p', 'n', 'u', 'm', 1);
if (description.variantNumeric().numericSpacingValue() == FontVariantNumeric::ProportionalNums)
m_features.append(pnum);
static hb_feature_t tnum = createFeature('t', 'n', 'u', 'm', 1);
if (description.variantNumeric().numericSpacingValue() == FontVariantNumeric::TabularNums)
m_features.append(tnum);
static hb_feature_t afrc = createFeature('a', 'f', 'r', 'c', 1);
if (description.variantNumeric().numericFractionValue() == FontVariantNumeric::StackedFractions)
m_features.append(afrc);
static hb_feature_t frac = createFeature('f', 'r', 'a', 'c', 1);
if (description.variantNumeric().numericFractionValue() == FontVariantNumeric::DiagonalFractions)
m_features.append(frac);
static hb_feature_t ordn = createFeature('o', 'r', 'd', 'n', 1);
if (description.variantNumeric().ordinalValue() == FontVariantNumeric::OrdinalOn)
m_features.append(ordn);
static hb_feature_t zero = createFeature('z', 'e', 'r', 'o', 1);
if (description.variantNumeric().slashedZeroValue() == FontVariantNumeric::SlashedZeroOn)
m_features.append(zero);
FontFeatureSettings* settings = description.featureSettings();
if (!settings)
return;
// TODO(drott): crbug.com/450619 Implement feature resolution instead of
// just appending the font-feature-settings.
unsigned numFeatures = settings->size();
for (unsigned i = 0; i < numFeatures; ++i) {
hb_feature_t feature;
const AtomicString& tag = settings->at(i).tag();
feature.tag = HB_TAG(tag[0], tag[1], tag[2], tag[3]);
feature.value = settings->at(i).value();
feature.start = 0;
feature.end = static_cast<unsigned>(-1);
m_features.append(feature);
}
}
void HarfBuzzShaper::setFontFeatures()
{
const FontDescription& description = m_font->getFontDescription();
static hb_feature_t noKern = createFeature('k', 'e', 'r', 'n');
static hb_feature_t noVkrn = createFeature('v', 'k', 'r', 'n');
switch (description.getKerning()) {
case FontDescription::NormalKerning:
// kern/vkrn are enabled by default
break;
case FontDescription::NoneKerning:
m_features.append(description.isVerticalAnyUpright() ? noVkrn : noKern);
break;
case FontDescription::AutoKerning:
break;
}
static hb_feature_t noClig = createFeature('c', 'l', 'i', 'g');
static hb_feature_t noLiga = createFeature('l', 'i', 'g', 'a');
switch (description.commonLigaturesState()) {
case FontDescription::DisabledLigaturesState:
m_features.append(noLiga);
m_features.append(noClig);
break;
case FontDescription::EnabledLigaturesState:
// liga and clig are on by default
break;
case FontDescription::NormalLigaturesState:
break;
}
static hb_feature_t dlig = createFeature('d', 'l', 'i', 'g', 1);
switch (description.discretionaryLigaturesState()) {
case FontDescription::DisabledLigaturesState:
// dlig is off by default
break;
case FontDescription::EnabledLigaturesState:
m_features.append(dlig);
break;
case FontDescription::NormalLigaturesState:
break;
}
static hb_feature_t hlig = createFeature('h', 'l', 'i', 'g', 1);
switch (description.historicalLigaturesState()) {
case FontDescription::DisabledLigaturesState:
// hlig is off by default
break;
case FontDescription::EnabledLigaturesState:
m_features.append(hlig);
break;
case FontDescription::NormalLigaturesState:
break;
}
static hb_feature_t noCalt = createFeature('c', 'a', 'l', 't');
switch (description.contextualLigaturesState()) {
case FontDescription::DisabledLigaturesState:
m_features.append(noCalt);
break;
case FontDescription::EnabledLigaturesState:
// calt is on by default
break;
case FontDescription::NormalLigaturesState:
break;
}
static hb_feature_t hwid = createFeature('h', 'w', 'i', 'd', 1);
static hb_feature_t twid = createFeature('t', 'w', 'i', 'd', 1);
static hb_feature_t qwid = createFeature('q', 'w', 'i', 'd', 1);
switch (description.widthVariant()) {
case HalfWidth:
m_features.append(hwid);
break;
case ThirdWidth:
m_features.append(twid);
break;
case QuarterWidth:
m_features.append(qwid);
break;
case RegularWidth:
break;
}
FontFeatureSettings* settings = description.featureSettings();
if (!settings)
return;
unsigned numFeatures = settings->size();
for (unsigned i = 0; i < numFeatures; ++i) {
hb_feature_t feature;
const AtomicString& tag = settings->at(i).tag();
feature.tag = HB_TAG(tag[0], tag[1], tag[2], tag[3]);
feature.value = settings->at(i).value();
feature.start = 0;
feature.end = static_cast<unsigned>(-1);
m_features.append(feature);
}
}